Synced / Global blocks: Improving clarity in the UI

[jameskoster]

We have a few open issues dedicated to addressing the lack of clarity around these blocks across different UI regions and flows. It would be good to track them all so that we don't end up with divergent / incompatible solutions.

• Site Editor Inserter(s): Prioritise Template Parts over Patterns, and indicate the difference between the two #42501
• Colorise template parts and reusable blocks in the UI #32163
• Synced blocks: Define them as such in the Inspector #43261
• Improving the inline template part editing flow #43608

[jameskoster]

Closing this as there's only one outstanding item and it already has a dedicated issue.